I correct my posting that this problem arises due to running a script
that internally issue below commands as root user:
> bin/hadoop namenode -format
>bin/start-all.sh
No is it possible to start the previous cluster with the previous data
or not.
Thanks
Adarsh Sharma wrote:
Thanks harsh,
My dfs.name.dir is /home/hadoop/project/hadoop-0.20.2/name
& there is only one file fsimage inimage directory & current directory
is empty.
But there must be four files fsname, edits, image etc in current
directory. How they got deleted even I don't issue format command yet.
I think there must be a remedy to get the previous data.
Harsh J wrote:
Hello Adarsh,
On Thu, Apr 28, 2011 at 11:02 AM, Adarsh Sharma
<[email protected]> wrote:
After correcting my mistake , when I try to run with the hadoop
user, my
Namenode fails with the below exception\ :
2011-04-28 10:53:49,608 ERROR
org.apache.hadoop.hdfs.server.namenode.FSNamesystem: FSNamesystem
initialization failed.
java.io.IOException: NameNode is not formatted.
at
org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:317)
Do you still have the valid contents in your good ${dfs.name.dir}? You
should be able to recover with that.
